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In it to win it! Using machine learning to analyze why viewers changed their debate winner perception 
during the 2021 German chancellor debate

Felix Ettensperger*, Thomas Waldvogel, Uwe Wagschal, Samuel Weishaupt

Department of Political Science, Albert-Ludwigs-University, Germany; 
Institute of Computer Science, Albert-Ludwigs-University, Germany


Felix Ettensperger, Albert-Ludwigs-University, 
Department of Political Science, Werthmannstraße 12, 79098 Freiburg, felix.ettensperger@politik.uni-freiburg.de.

Thomas Waldvogel, Albert-Ludwigs-University, 
Department of Political Science, Werthmannstraße 12, 79098 Freiburg, thomas.waldvogel@politik.uni-freiburg.de.

Uwe Wagschal, Albert-Ludwigs-University, 
Department of Political Science, Werthmannstraße 12, 79098 Freiburg, uwe.wagschal@politik.uni-freiburg.de.

Samuel Weishaupt, Albert-Ludwigs-University, 
Freiburg, Institute of Computer Science, Georges Köhler Allee, Building 51, 79110 Freiburg, weishaus@informatik.uni-freiburg.de.




I. Data

Data is available as CSV File for all ML Iterations presented in the main manuscript and Annex:

Dataset_full_8129_DOM.csv (full Dataset including all recorded Debat-O-Meter cases)
Dataset_RTS_4613_DOM.csv (filtered RTS Dataset including all Debat-O-Meter cases used in the main analysis)
Dataset_noStreamer_4584_DOM.csv (Dataset filtered for TV-users excluding Streamers from analysis for robustness checks and differential analysis)

Data is available as RData object (Used in the Replication Scripts)

dat.full.RData (full dataset)
dat.stream44.RData (no streamer dataset)


II. Replication Scripts

Replications Scripts are available as RMD (R Studio) Scripts and HTML Files:

1 -- RTS_ML_BTW_2021_Winner_expectation.nb.Rmd
1 -- RTS_ML_BTW_2021_Winner_expectation.nb.html

2 -- RTS_ML_BTW_2021_Winner_expectation_no_streamers.nb.Rmd
2 -- RTS_ML_BTW_2021_Winner_expectation_no_streamers.nb.html

3 -- RTS_ML_BTW_2021_Losing_perception.nb.Rmd
3 -- RTS_ML_BTW_2021_Losing_perception.nb.html


Additional Materials for the Annex and for further visualization is contained in the files:

RTS_BTW_2021_P1_Winner_expectation_Additional Figures.html
RTS_BTW_2021_P1_Winner_expectation_no_streamers_Additional Figures.html
RTS_BTW_2021_P2---Losing-perception_Additional Figures.html

 